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Dr. Cardenas studied political attitudes among di erent groups of 20-, 40-, and 60- year-olds. Political attitudes were found to be most conservative in the age-60 group and least conservative in the age-20 group. What type of method was used in this study? Can you conclude that people become more politically conservative as they get older? Why or why not? Propose alternative ways of studying this topic.
A study showed that 60% of The Wall Street Journal subcribers watch CNBC every day. Of these, 70% watch it outside the home. Only 20% of those who don't watch CNBC every day watch it outside the home.
Suppose that a random sample of 800 early replacement buyers yields a mean number of dealers visited of 1 = 3.3, and that a random sample of 500 late replacement buyers yields a mean number of dealers visited of 2= 4.5.
Determine x-bar and s for this data set. You may suppose the values for bulb life are normally distributed. Use traditional method to make your decision.
Evaluate the regression assumptions of linearity and homoscedasticity by assessing your new residual plot. Be specific about your evaluation
1 a legislative committee consists of 13 democrats 7 republicans and 3 independents. a delegation of 3 is selected to
In a research report by Richard H. Weindruch of the UCLA Medical School, it is claimed that mice with an average life span of 32 months will live to be about 40 months old when 40% of the calories in
The analysis of variances produces df between = 3 and df within = 24. For this analysis, determine df total ?
if we were randomly drawing a sample of one organizaiton from a population of 15 where five are high performers and
Assume in a single game sudden death playoff between team A and team B that team A would win with probability 0.6.
Discuss which analysis of variance should be applied when an experiment has more than one independent variable. Discuss the assumptions and limitations of the analysis of variance in comparison with the t test including a discussion of post hoc te..
At your place of employment, 100 employees are randomly selected and asked the distance of their communte to work. From this group a mean of 15.2 is computed. Identify the following as either?
a researcher uses a repeated-measures study to compare two treatment conditions with a set of 20 scores in each
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